SEOUL - Now that North Korea's rocket launch has ended in failure, its next move could be even more provocative: A nuclear test. That's what followed previous launches in 2006 and 2009, and experts suspect the government is under even more pressure to do so now after its latest rocket burst apart moments after liftoff Friday. "This failure makes it even more likely that the North will now attempt a nuclear test in the not-too-distant future," said Mr Ralph Cossa, president of the Pacific Forum CSIS, a Hawaii-based think-tank. "The rocket launch was supposed to demonstrate the regime's power and technical prowess. A nuclear test may now be seen as even more necessary, not just to further perfect their weapons capability, but also to save face." The possibility that North Korea is preparing for what would be its third nuclear test is supported by a South Korean intelligence ...